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CHARLOTTE, N.C., May 12, 2011 (GLOBE NEWSWIRE) -- Polypore International, Inc. (NYSE:PPO) announced today it will make a presentation to the investment community at 11:00 am ET on Tuesday, May 17, 2011, at the 2nd Annual Needham and Company's Cleantech Conference in New York.

A link to the webcast and a copy of the Company's presentation will be accessible through the Company's website at http://www.polypore.net in the Investor Relations section under Events & Presentations.

Polypore International, Inc. is a global high technology filtration company specializing in microporous membranes. Polypore's flat sheet and hollow fiber membranes are used in specialized applications that require the removal or separation of various materials from liquids, primarily in the ultrafiltration and microfiltration markets. Based in Charlotte, NC, Polypore International, Inc. is a market leader with manufacturing facilities or sales offices in ten countries serving six continents. See www.polypore.net .